Horowitz Bros. & Margareten Box from matzo
Box of matzo from Horowitz Margareten Passover Matzohs. Horowitz Margareten was one of the oldest and most famous matzo manufacturers in the United States (founded in 1884). In the early 1990s, after Ukraine regained its independence and religious freedom, Jewish communities often received matzo as humanitarian aid from American foundations, as local production had not yet been established.